83589-73-5 84930-56-3 Ligatoxin A Ligatoxin A (reduced) Phoratoxin(reduced), 6-L-serine-18-L-leucine-19-L-threonine-21-L-threonine-25-L-threonine-28-L-serine-38-L-serine-39-L-threonine- Phoratoxin, 6-L-serine-18-L-leucine-19-L-threonine-21-L-threonine-25-L-threonine-28-L-serine-38-L-serine-39-L-threonine-